Specifications AVVG cable

How to decipher the abbreviation?

First of all tell you how to decipher the markings AVVG cable.Thus, decoding according to GOST standards as follows:

• A - aluminum conductors;
• B - insulation of the conductors is represented PVC sheath;
• V - the outer shell is also made of PVC plastic;
• D - no additional protection electric cable (bare).

In addition to these four letters may be present in the marking the prefix "T" or "P", a dash."T" means that the conductor is made tropicalized (not afraid mold).The letter "P" makes it clear that the power cable is flat.

After the letters, according to the standard labeling conductors, go figure.Digital signage can be as follows: AVVG-660 3 * 25.The first number (660) - this is the operating voltage, which can be specified either in volts or in kW (0.66).After the voltage indicate the number of cores and their cross-section.Also in the brackets you can see the prefix "(standby)", which says that the single-wire current-carrying conductors.

Here is the transcript of AVVG cable.As you can see, everything is quite simple and clear!

Design features

now speak briefly about the electric cable device.As we have said, the conductors of the conductor aluminum (this is clearly seen in the photo).The amount of veins can be from 1 to 6, and may be as single-wire or stranded.

As for the color marking of insulation, it complies with all the standards GOST - zero blue ground yellow-green color.To the outer shell separated by an internal insulation without problems lavsanovaja tape can be laid between them.The cross-section of cables may differ, unless AVVG two-core cable is not.Most often, the smaller section is only one vein (ground or zero, as in the picture below).The Six-strand electrical conductor 2 smaller - and zero and "earth".

Video Review Performance electrocable:

Basic parameters

So, we come to the most important part of the article - the description of the technical characteristics and operating conditions AVVG cable.Among the main parameters that you may need for electrical work, isolated:

1. Rated voltage 660 and 1000;
2. Frequency AC 50 Hz;
3. cross-section of veins ranging from 2.5 to 240 mm2;
4. Operating temperature -50 to + 50 ° C;
5. maximum allowable heating of the conductors shall not exceed the mark of 70 ° C;
6. Electricity is allowed at temperatures ranging from -15 ° C to + 50 ° C (basic condition pads);
7. service life of 30 years;
8. The warranty period of 5 years;
9. minimum bend radius of 7.5 outer diameter electric cable;

As for ampacity, insulation thickness, weight and resistance AVVG cable, these values ​​we clearly given in the table:

Scope

Well, the last question that we would like to see - purpose cable AVVG and conditionshis pads.This guide can be used in the following electrical work:

• laying overhead power lines;
• laying network cable overpasses, bridges and even in blocks;
• wiring in a partially flooded, wet and dry conditions.
• wiring in explosive and flammable environments.

With regard AVVG laying cable in the ground, then you need to consider that this type of elektrokaeblya not armored, so when mechanical damage it quickly fails.Recommended for use underground installation electrical cable only if no significant portion of the mechanical stresses and corrosive soil activity is low.

Here we have presented all the main technical characteristics of the cable AVVG, deciphering its markings and last but not least - the appointment.Also, be sure to check the characteristics of the wires PVA, which is not less often used by electricians!